Which type of relaxer typically requires mixing two components before use?

The correct choice is that an ammonium thioglycolate relaxer typically requires mixing two components before use. This type of relaxer is categorized as a “thio” relaxer, which works by breaking down the hair’s natural structure, allowing it to be reshaped into a straighter form.

To activate the relaxing process, ammonium thioglycolate needs to be combined with an oxidizing agent. This dual-component system ensures that the chemical reactions occur effectively, leading to the proper straightening of the hair. It is notable that mixing the components just prior to application helps maintain the effectiveness of the ingredients, as they start to react immediately after they are combined.

In contrast, metal hydroxide relaxers are usually single-component products that do not require any mixing. They act quickly and are known for their potency, but they are not mixed before use. Keratin relaxers differ in composition as they primarily involve keratin protein and often work by coating the hair rather than breaking down its structure, and they do not require mixing components either. Non-alkaline relaxers are designed to be gentler and do not involve a two-part mixing process as well. Thus, the need for mixing components is specifically characteristic of ammonium thiogly